Today, security monitoring is now one of the most important components of security operations. From the high-definition front-end camera to the more convenient network transmission monitoring, to the increasingly weak storage and HD video at the back end, the promotion from this investment now explains the importance of video surveillance in the entire security operation. . However, the most common problem encountered by monitoring equipment is that the display is unclear. Most of the reasons are caused by various interferences. In fact, the interference elimination of the monitor display is not a big problem. The simple treatment can make the monitor "full of blood". Today, I will teach a few tricks to clean up the most common interference, so that the monitor will no longer suffer from interference. First, the most common interference: wood grain interference Wood grain interference is probably one of the most common disturbances during use. Not only monitors, but also some old-fashioned non-wired video signal transmissions have been disturbed by these lines. In a light situation, it can be visually exhausted and even affect normal viewing. Therefore, this is often seen as the number one interference situation. In fact, there are many reasons for the display being unclear, and the most common one is the structure of the video transmission cable. Because in the construction of the monitoring system, cables are often the most easily overlooked links, which also constitutes a good quality of cable. When the quality of the copper wire inside the cable is not high, or the outer shielding net is too rare, it will have a very obvious impact on the video display of the terminal. This is mainly because the difference in cable quality causes the resistance of the entire line to be too large, which affects the transmission quality of the signal. Regarding the handling of such line interference, the choice of cable exchange is probably the only way. However, because similar interferences are composed of many reasons, the identification of faults is undoubtedly the most important operation, and it is advocated by experienced people to prevent unnecessary unnecessary expenditures. In fact, in addition to the line problem, wood grain interference may sometimes be caused by strong current disturbances in the vicinity of the transmission line. This is mainly because during the transmission of the line, there is a superimposed interference of the normal power supply, perhaps a thyristor device in its own power grid, and these also have a very large impact on the transmission of the line. Of course, the handling of such interference is much simpler than the above method. It is only necessary to use the purification power supply or the online power supply method in the whole system to pass this small line pattern. In addition, the passage of strong currents around the area also affects the line. Regarding this problem, it is necessary to strengthen the shielding of the front-end equipment or to ground the video line. Second, the largest area of ​​interference: net interference In addition to the most common wood-grained interference, there is also an interference that can occasionally affect viewing, that is, mesh-like interference. In the common interference pattern, the area of ​​influence of such interference can be said to be the largest. However, although it has a large spread, it is not difficult to deal with. The cause of this interference is usually caused by a small short circuit or open circuit of the transmission cable of the video cable and the surrounding protection network. As a result, such problems are often presented mostly in BNC joints or other types of joints. When dealing with similar problems, you can solve the confusion of such interference by simply looking at the corresponding connectors one by one and replacing the problematic devices. Third, the most regular interference: vertical strip interference Regarding this kind of interference, although it is not very common, its characteristics are very obvious. The composition of this kind of interference is mainly because the quality of the cable does not conform to the specification, which causes the characteristics of the associated data in the transmission process to be abnormal. Therefore, in the handling of such interference conditions, most of the methods of "starting series resistors" or "terminal parallel resistors" are used for disposal. Of course, the best way to prevent such interference is to perform necessary product inspections when the line is set up, to find problems in advance, and to prevent a rework after the completion of the project. The above three interference conditions basically cover one of the most common interference phenomena in video surveillance. From the above analysis, it is not difficult to find that there are quite a few reasons for the equipment or construction. In fact, interference is not a big problem. It is only when the construction or procurement of accessories, more repeated and detailed testing of the equipment, master the quality of the goods at the source, so as not to continue to appear in the following problems . Home energy storage system,reliable house generators,hybrid solar system,home backup power,whole home solar system,small solar system for home,house backup battery EMoreShare International Trade (Suzhou) Co., Ltd , https://www.emoresharesystem.com
The interference cancellation of the monitor display is not a big problem. The simple treatment can make the monitor "full of blood". Xiaobian here teaches how to clean up the most common interference, so that the monitor is no longer disturbed. Torture.